code: def test_logical_form_with_not_executes_correctly(self):
      nlvr_world = self.worlds[2]
      # Utterance is "There are at most two medium triangles not touching a wall." and label is "True".
      logical_form = "(object_count_lesser_equals ((negate_filter touch_wall) \
                                                                       (medium (triangle (all_objects)))) 2)"
      assert nlvr_world.execute(logical_form) is True
  
imports: from __future__ import with_statement
  from __future__ import division
  from __future__ import absolute_import
  import json
  from allennlp.common.testing import AllenNlpTestCase
  from allennlp.semparse.worlds.world import ExecutionError
  from allennlp.semparse.worlds.nlvr_world import NlvrWorld
  from io import open
label_desc: Use image node_id 9 for calling the TestNlvrWorld obj's underlying member method code with example usage: obj.test_logical_form_with_not_executes_correctly() without return types